58 lines
1.7 KiB
TypeScript
58 lines
1.7 KiB
TypeScript
// Copyright 2017-2022 @polkadot/apps-routing authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { TFunction } from 'i18next';
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import type { ApiPromise } from '@polkadot/api';
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import type { PalletStakingExposure } from '@polkadot/types/lookup';
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import type { Route } from './types';
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import Component from '@polkadot/app-staking';
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import { unwrapStorageType } from '@polkadot/types/primitive/StorageKey';
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import { assert, BN_ONE } from '@polkadot/util';
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const TEST_ADDR = '1ufRSF5gx9Q8hrYoj7KwpzQzDNqLJdbKrFwC6okxa5gtBRd';
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function needsApiCheck (api: ApiPromise): boolean {
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try {
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// we need a known Exposure type
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const { others: [{ value, who }], own, total } = api.registry.createType<PalletStakingExposure>(
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unwrapStorageType(api.registry, api.query.staking.erasStakers.creator.meta.type),
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{ others: [{ value: BN_ONE, who: TEST_ADDR }], own: BN_ONE, total: BN_ONE }
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);
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assert(total.eq(BN_ONE) && own.eq(BN_ONE) && who.eq(TEST_ADDR) && value.eq(BN_ONE), 'Needs a known Exposure type');
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} catch {
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console.warn('Unable to create known-shape Exposure type, disabling staking route');
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return false;
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}
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try {
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// we need to be able to bond
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api.tx.staking.bond(TEST_ADDR, BN_ONE, { Account: TEST_ADDR });
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} catch {
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console.warn('Unable to create staking bond transaction, disabling staking route');
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return false;
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}
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return true;
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}
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export default function create (t: TFunction): Route {
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return {
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Component,
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display: {
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needsApi: [
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'query.staking.erasStakers',
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'tx.staking.bond'
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],
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needsApiCheck
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},
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group: 'network',
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icon: 'certificate',
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name: 'staking',
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text: t('nav.staking', 'Staking', { ns: 'apps-routing' })
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};
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}
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